Grand Challenges Explorations Round 4 Opened
- Sep 1, 2009
![09_09-2009.jpg](/sites/default/files/styles/featured_image_fallback/public/images/09_09-2009.jpg?itok=9kJfzic_)
In the fourth round of Grand Challenges Explorations, projects were invited that targeted the following topics: new ways to protect against infectious disease, new contraception technologies, low-cost diagnostics, and new ways to induce and measure mucosal immunity.